L1 is inside the Earth's orbit (relative to the sun), L2 is outside, L3 is directly opposite the Earth, L4 is on the same orbit ahead of earth and L5 is on the

L1 is inside the Earth's orbit (relative to the sun), L2 is outside, L3 is directly opposite the Earth, L4 is on the same orbit ahead of earth and L5 is on the same orbit behind the Earth.